Ethernet, serial-data multiplexer integrates utility fiber-optic
A new Ethernet and serial-data unit from TC Communications multiplexes one 10/100M Ethernet and four channels of RS-232, RS-422, TTL, or dry contact interfaces over single- or multi-mode fiber. A one fiber, two-way-communication option doubles existing fiber utilization.
TC8530 is a way to integrate substation networks with RTUs and PLCs with Ethernet and Serial interfaces over a single fiber. Service providers also use the TC8530 as a cost effective way to provide Ethernet and serial connections, the company says.
It supports distances exceeding 100 km and offers redundant power and optics, including automatic switchover features for maximum reliability. It is available “industrial hardened”, -40 to 80 degrees C, for extreme environments.
The Ethernet port auto-negotiates at 10/100M, with full 10Mbps throughput, and enables rate control in increments of 32 Kbps. It is IEEE 802.3/802.3u/802.3x compliant. Setup, diagnostics and control are accessed via serial terminals, telnet, or SNMP management-ports.
— Richard Phelps, senior editor, Control Engineering
Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.